Annual worldwide sales of electric vehicles (EVs) will reach 3.8 million by 2020, according to a new report from Pike Research, a part of Navigant's Energy Practice.

"Sales of EVs have not lived up to automakers' expectations and politicians' proclamations, but the market is expanding steadily as fuel prices remain high and consumers increasingly seek alternatives to internal combustion engines," says senior research analyst Dave Hurst. "Indeed, sales of plug-in EVs will grow at a compound annual growth rate of nearly 40 percent over the remainder of the decade, while the overall auto market will expand by only two percent a year.”

The plug-in electric vehicle sector can be split into two vehicle categories: plug-in hybrid electric vehicles (PHEVs) and battery electric vehicles (BEVs). According to the report, the number of PHEVs sold in most regions is expected to be lower than BEVs, except for in North America and Latin America. In these regions, the longer driving range of PHEVs is expected to prove more attractive to consumers. In other regions, the high cost of petroleum fuels, large number of BEVs available and dense urban areas are anticipated to contribute to higher sales of BEVs than PHEVs.

Months after the U.S. Environmental Protection Agency released its Clean Power Plan, which will create new regulations for existing power plants, the agency says it has received loads of feedback to consider.